Uncaught SyntaxError: Unexpected token <

## Bugs

Please include the following information with your bug report:

> What MDL Version are you using? (please be specific, e.g. _major.minor.patch_)
"material-design-lite": "^1.3.0"

> What browser(s) is this bug affecting (including version)?
Google Chrome
Version 67.0.3396.99 (Official Build) (64-bit)

> What OS (and version) are you using?
MacOS high sierra 10.13.5

> What are the steps to reproduce the bug? Can you create a plunker/codepen/jsfiddle which reproduces it?

Follow the installation step given at
https://getmdl.io/started/index.html

NPM
Simply install Material Design Lite files in your npm enabled project using:

Run the following command in a shell:
```npm install material-design-lite --save```
This will install the Material Design Lite library files in your project's node_modules folder.

Refer to these files by adding a and a element into your HTML pages and also include the Material Icon font:
```
<link rel="stylesheet" href="/node_modules/material-design-lite/material.min.css">
<script src="/node_modules/material-design-lite/material.min.js">

```

> What is the expected behavior?
Should work Properly

> What is the actual behavior?
Error Uncaught SyntaxError: Unexpected token < material.min.js:1